in-wheel hubless motor system
TRANSCRIPT
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- Ganesh choudhary
IN-WHEEL MOTOR SYSTEM
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Chevrolet FNR conceptDesigned by General Motors’ Pan Asia Technical Automotive Center (PATAC), Shanghai
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Some of the advance technologies incorporated are
• Unique capsule design.
• Iris recognition system.
• Dragonfly doors open upwards.
• Swiveling front seats upto 180 degrees to face the rear seats.
• Magnetic hubless wheel electric motors (In-wheel motor
system
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MAGNETIC HUBLESS WHEEL ELECTRIC MOTORS (IN-WHEEL MOTOR SYSTEM)
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is an electric motor that is incorporated into the hub of each wheel and drives it directly.
WHAT IS IN-WHEEL ELECTRIC MOTOR ?
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HOW HUB MOTOR DIFFER FROM AN ORDINARY MOTOR ?
Powered by one motor -All wheel driven.
Multiple motors, one at each wheel.
Need driveshaft, transmission to transmit power to the wheels.
Each wheel drives itself.
Ordinary Electric motor In-wheel motor
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COMPONENTS
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WORKINGwireless system transmits the electricity through a transmitting coil to a receiving coil in the wheel hub through induction.
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ADVANTAGES
68-75% Battery to Wheel efficiency, While IC engines achieve
only around 18-23% Tank to Wheel efficiency, i.e. Powerloss is
less.
Current complex wiring distribution and its susceptibility to
shorting out is solved.
Controlled Individual acceleration / braking system prevents
mishaps such as Skids and maintain vehicle stability.
Max can run at 75 KMph speed.
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whole lot simpler (mechanically less complex).
Demonstration vehicles are already out , pickup truck , few
buses and Bicycles.
High torque at startups, torque of up to 700Nm at each
wheel.
Rid of the engine compartment thus more space for
passengers & luggage.
Lighter Vehicle (Each wheel-38 Kg approx) thus less
energy required to drive.
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CHALLENGES AHEAD.
To achieve greater speed than just 75 KMph.
Development in balancing the Unsprung mass issue ,
improvement in Shock absorption and vibration.
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FUTURE SCOPE
Receiving electricity wirelessly from transmitting coils that
are embedded under road surfaces.
Battery less Electric cars.
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REFERENCES Autoevalution.com/world's_First_Wireless_In_WheeL
NTN Technical paper – Review No.79 (2011) by Yuich ITOH
World Electric Vehicle Journal Vol. 4 - ISSN 2032-665, 2010.
Electric & Hybrid Vehicle Technology magazine, July 2013 edition.
Proteanelectric.com/a_new_paradigm Extremetech.com /Chevy_FNR_science_fiction_made_real.
Wikipedia- Wheel Hub motors
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QUESTIONS ???
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THANK YOU